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Abstract:

An electrical connector adapted for at least two different mating
connectors, comprises an insulative housing and a plurality of contacts
retained on the housing. The insulative housing has a base and a tongue
forwardly extending from the base. Each contact has a retaining portion
retained in the base, a contact portion extending to the tongue from one
end of the retaining portion, and at least one soldering portion
extending out of the insulative housing from another end of the retaining
portion. The contacts comprise two pairs of outer contacts at two sides
thereof and at least one middle contact between said two pairs of outer
contacts to connect with one contact of one mating connector or two
contacts of another mating connector.

Claims:

1. An electrical connector adapted for at least two different mating
connectors, comprising: an insulative housing having a base and a tongue
forwardly extending from the base; and a plurality of contacts, each
contact having a retaining portion retained in the base, a contact
portion extending to the tongue from one end of the retaining portion,
and at least one soldering portion extending out of the insulative
housing from another end of the retaining portion; wherein the contacts
comprise two pairs of outer contacts at two sides thereof and at least
one middle contact between said two pairs of outer contacts for
connecting with one contact of one mating connector or two contacts of
another mating connector.

2. The electrical connector according to claim 1, wherein the contact
portions of all contacts are arranged in a row at one surface of the
tongue along an up to down direction.

3. The electrical connector according to claim 2, wherein the electrical
connector comprises two said middle contacts for simultaneously
connecting with said one contact of said one mating connector and
respectively connecting with said two contacts of said another mating
connector.

4. The electrical connector according to claim 3, wherein the contact
portions of said middle contacts define a distance therebetween along a
transverse direction perpendicular to the up to down direction, and the
distance is smaller than that between the contact portions of each pair
of outer contacts.

5. The electrical connector according to claim 4, wherein each of the
outer contact and the middle contact has one said soldering portion
corresponding to the contact portion thereof, and the distances between
adjacent soldering portions are equal and larger than that between
adjacent contact portions.

6. The electrical connector according to claim 4, wherein the contact
portions of the outer contact and adjacent middle contact define a
distance which is smaller than that between the contact portions of each
pair of outer contacts.

7. The electrical connector according to claim 2, wherein the electrical
connector comprises only one said middle contact which is used for
connecting with said one contact of said one mating connector and
simultaneously connecting with said two contacts of said another mating
connector, and the contact portion of said middle contact defines a width
which is larger than that of the contact portions of the outer contacts
along a transverse direction perpendicular to the up to down direction.

8. The electrical connector according to claim 7, wherein each outer
contact has one soldering portion, and said middle contact has one or two
soldering portions, and the distances between adjacent soldering portions
are equal.

9. The electrical connector according to claim 7, wherein the contact
portions of adjacent outer contact and middle contact define a distance
which is smaller than that between the contact portions of each pair of
outer contacts.

10. The electrical connector according to claim 1, wherein each contact
portion defines a width which is larger than that of corresponding
contact of each mating connector and that of each soldering portion.

11. The electrical connector according to claim 1, further comprising a
metal shell surrounding the tongue, the metal shell has a winding bottom
wall to form two mating openings for receiving said two mating
connectors.

12. The electrical connector according to claim 1, wherein the contacts
are insert molded in the insulative housing.

13. The electrical connector according to claim 1, wherein the base
defines a recessed portion upwardly recessed from a bottom surface
thereof to receive all contacts therein.

14. An electrical connector adapted for at least two different mating
connectors, comprising: an insulative housing having a base and a tongue
forwardly extending from the base; and a plurality of contacts retained
in the insulative housing, the contacts comprising two pairs of outer
contacts at two sides thereof and at least one middle contact between
said two pairs of outer contacts, and each contact having a contact
portion extending to the tongue,; and a metal shell covering the
insulative housing and having a top wall, a bottom wall and a pair of
side walls, the bottom wall having an protruding portion upwardly
protruding toward the tongue to form a first mating opening together with
the top wall and side walls, and at least one downward recessed portion
to form a second mating opening together with the top wall, two side
walls and the protruding portion; wherein the contour of the first mating
opening corresponds to that of a standard Micro USB 2.0 receptacle
connector.

15. The electrical connector according to claim 14, wherein the tongue is
located in a shared space of the first mating opening and the second
mating opening, and defines a width which is similar to that of the
tongue of the standard Micro USB receptacle.

16. The electrical connector according to claim 15, wherein the
electrical connector comprises two said middle contacts, and the contact
portions of said middle contacts define a distance therebetween along a
transverse direction perpendicular to an up to down direction, and the
distance is smaller than that between the contact portions of each pair
of outer contacts.

17. The electrical connector according to claim 15, wherein the
electrical connector comprises only one said middle contact, and the
contact portion of said middle contact defines a width which is larger
than that of the contact portions of outer contacts along a transverse
direction perpendicular to an up to down direction.

18. An electrical connector system among a first receptacle connector and
a corresponding mating first plug connector, and a second receptacle
connector and a corresponding mating second plug connector for allowing
the first receptacle connector to mutually exclusively mate with both the
first and second plug connectors, said first receptacle connector
including: an insulative housing including a mating tongue; a plurality
of contacts disposed in the housing with contacting sections exposed upon
the mating tongue; a shell enclosing the mating tongue and defining a
pair of opposite longitudinal sides spaced from each other in a first
direction, and a pair of opposite transverse sides spaced from each other
in a second direction, said longitudinal sides and said transverse sides
linked to one another alternately; and a first one of the longitudinal
sides extending in a straight manner along a longitudinal direction,
which is same with the second direction, while a second one of the
longitudinal sides extending in a double-offset manner along said
longitudinal direction and having a middle sections closer to the first
one of the longitudinal sides and a pair of side sections relatively
farther from the first one of the longitudinal sides; wherein during
mating with the first plug connector, both the middle section and the
pair of side sections are configured to be engaged with the first plug
connector; during mating with the second plug connector, only the middle
section is configured to be engaged with the second plug connector while
the side sections are not, under condition that second receptacle
connector, which is configured to be snugly compliantly mated with the
second plug connector, is not configured to be allowed to be mated with
the first plug connector; wherein a pair of oblique sections are located
between the middle section and the pair of side sections, and the
dimension of the mating tongue in the longitudinal direction is
essentially to a sum of the middle section and the pair of oblique
sections.

19. The electrical connector system as claimed in claim 18, wherein the
contacts of the first receptacle connector includes two pairs of outer
contacts commonly sandwiching at least one middle contact which is
essentially aligned with the middle section in a vertical direction which
is same with the first direction.

20. The electrical connector system as claimed in claim 18, wherein the
outermost two contacts of the first receptacle connector are essentially
respectively aligned with joints between the middle section and the pair
of oblique sections in a vertical direction which is same with the first
direction.

Description:

BACKGROUND OF THE INVENTION

[0001] 1. Field of the Invention

[0002] The present invention relates to an electrical connector, and more
particularly to an electrical connector adapted for plural different
mating connectors.

[0003] 2. Description of Related Art

[0004] Different electronic devices connect with each other by a plurality
of electrical connectors connecting with a number of cables with mating
connectors corresponding to the electrical connectors. Micro Universal
Serial Bus (Micro USB) connectors are widely used on Digital cameras,
Mobile phones and MP3 et al. for adapting the small volume of the Digital
cameras, Mobile phones and MP3 et al. The Hi-Speed rate of Micro USB
connector widely used in market is up to 480 Mbit/s.

[0005] However, as the development of electric industry, even the USB 2.0
can not satisfy the requirement of many electronic devices. In April
2009, a new connector, Digital Interface for Video and Audio (DiiVA) is
released by China Video Industry Association, and the Hi-Speed rate of
DiiVA connector is up to 10 GB/s, which can satisfy the requirement of
many electronic devices in nowadays. A Mini DiiVA connector especially
designed for small electronic device is disclosed in China Patent No.
CN201397899Y which was issued on Feb. 3, 2010, and the Mini DiiVA
connector comprises two pairs of differential signal contacts for
increasing the speed of signal transmission. However, because the Micro
USB connector and Mini DiiVA connector are not compatible and can not
mate with each other; and the Mini DiiVA connector would not fully
replace the Micro USB connector in short period of time; then a new
electrical connector is required be designed to be compatible to the Mini
DiiVA connector and the Micro USB connector at the same time, and has a
small volume to adapt a miniature development of the electronic industry.

[0006] Hence, an improved electrical connector is desired to overcome the
above problems.

BRIEF SUMMARY OF THE INVENTION

[0007] According to the present invention, an electrical connector adapted
for at least two different mating connectors, comprises an insulative
housing and a plurality of contacts retained on the housing. The
insulative housing has a base and a tongue forwardly extending from the
base. Each contact has a retaining portion retained in the base, a
contact portion extending to the tongue from one end of the retaining
portion, and at least one soldering portion extending out of the
insulative housing from another end of the retaining portion. The
contacts comprise two pairs of outer contacts at two sides thereof and at
least one middle contact between said two pairs of outer contacts for
connecting with one contact of one mating connector or two contacts of
another mating connector.

[0008] According to another aspect of the present invention, an electrical
connector adapted for at least two different mating connectors, comprises
an insulative housing, a plurality of contacts retained in the insulative
housing, and a metal shell covering the insulative housing. The
insulative housing has a base and a tongue forwardly extending from the
base. Each contact has a contact portion extending to the tongue. The
contacts comprise two pairs of outer contacts at two sides thereof and at
least one middle contact between said two pairs of outer contacts. The
metal shell has a top wall, a bottom wall and a pair of side walls. The
bottom wall has an protruding portion upwardly protruding toward the
tongue to form a first mating opening together with the top wall and side
walls, and at least one downward recessed portion to form a second mating
opening together with the top wall, two side walls and the protruding
portion. The contour of the first mating opening corresponds to that of a
standard Micro USB 2.0 receptacle connector.

[0009] The foregoing has outlined rather broadly the features and
technical advantages of the present invention in order that the detailed
description of the invention that follows may be better understood.
Additional features and advantages of the invention will be described
hereinafter which form the subject of the claims of the invention.

BRIEF DESCRIPTION OF THE DRAWINGS

[0010] For a more complete understanding of the present invention, and the
advantages thereof, reference is now made to the following descriptions
taken in conjunction with the accompanying drawings, in which:

[0011] FIG. 1 is a perspective view of an electrical connector according
to a first embodiment of the present invention;

[0012] FIG. 2 is a view similar to FIG. 1, while taken from a different
aspect;

[0013] FIG. 3 is a front elevational view of the electrical connector
shown in FIG. 1;

[0014] FIG. 4 is an exploded view of the electrical connector shown in
FIG. 1;

[0015] FIG. 5 is a view similar to FIG. 4, while taken from a different
aspect;

[0016] FIG. 6 is a perspective view of a plurality of contacts of the
electrical connector shown in FIG. 1;

[0017] FIG. 7 is a view similar to FIG. 6, while taken from a different
aspect;

[0018] FIG. 8 is a top plan view of the contacts shown in FIG. 6;

[0019] FIG. 9 is a perspective view of an electrical connector according
to a second embodiment of the present invention;

[0020] FIG. 10 is a view similar to FIG. 9, while taken from a different
aspect;

[0021] FIG. 11 is an exploded view of the electrical connector shown in
FIG. 9;

[0022] FIG. 12 is a perspective view of a plurality of contacts of the
electrical connector shown in FIG. 9;

[0023] FIG. 13 is a top plan view of the contacts shown in FIG. 12;

[0024] FIG. 14 is a perspective view of an electrical connector according
to a third embodiment of the present invention;

[0025] FIG. 15 is a view similar to FIG. 14, while taken from a different
aspect;

[0026] FIG. 16 is an exploded view of the electrical connector shown in
FIG. 14;

[0027] FIG. 17 is a perspective view of a plurality of contacts of the
electrical connector shown in FIG. 14;

[0028] FIG. 18 is a top plan view of the contacts shown in FIG. 17;

[0029] FIG. 19 is a perspective view of a standard Micro USB 2.0 plug
connector; and

[0030] FIG. 20 is a perspective view of a Mini DiiVA plug connector.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT

[0031] In the following description, numerous specific details are set
forth to provide a thorough understanding of the present invention.
However, it will be obvious to those skilled in the art that the present
invention may be practiced without such specific details.

[0032] Referring to FIGS. 1-8, an electrical connector 100 according to a
first embodiment of the present invention is disclosed. The electrical
connector 100 can be soldered to a circuit board (not shown) for being
adapted for at least two different first and second mating connectors
800, 900. The first mating connector 800 is a standard Micro USB 2.0 plug
connector which is shown in FIG. 19. The second mating connector 900 is a
Mini DiiVA plug connector which is different from the first mating
connector 800, and shown in FIG. 20. The Micro USB 2.0 plug connector
comprises five contacts 81 which comprise a power contact, a pair of
differential signal contacts, an ID contact and a grounding contact, and
the spaces between adjacent contacts 81 are equal. The signal contacts
include a middle signal contact 811 which is located in the middle of the
five contacts 81. The Mini DiiVA plug connector 900 has six contacts 91
which comprise a pair of grounding contacts 912 and two pairs of
differential signal contacts 911 at two sides of the grounding contacts
912, and the spaces between adjacent contacts 91 are equal. The first and
second mating connectors 800, 900 have different contours. The electrical
connector 100 comprises an insulative housing 1, a plurality of contacts
2 retained on the insulative housing 1, and a metal shell 3 covering the
insulative housing 1.

[0033] Referring to FIGS. 4-5, conjoined with FIGS. 19-20, the insulative
housing 1 has a base 11 and a tongue 12 forwardly extending from the base
11. The first mating connector 800 has a first cavity 83 to receive the
tongue 12. The second mating connector 900 has a second cavity 93 to
receive the tongue 12. The second cavity 93 is wider than the first
cavity 83 along a transverse direction. The tongue 12 has a width and
thickness which are compliance to that of a standard Micro USB 2.0
receptacle connector (not shown). Then the tongue 12 can be received in
both the first and second cavities 83, 93. The tongue 12 has an upper
surface 121, a lower surface 122 and a protrusion 123 upwardly protruding
from a rear side of the upper surface 121 to stably retain the first and
second mating connectors 800, 900.

[0034] The base 11 has a front surface 110, a rear surface 111, a top
surface 112, a bottom surface 113 and two side surfaces 114. The tongue
12 extends from an upper side of the front surface 110. The base 11 has a
pair of projections 1121 upwardly extending from the top surface 112 to
engage with the metal shell 3. The base 11 has a pair of depressions 1141
depressed backwardly from a lower side of the front surface 110, and a
recessed portion 1131 upwardly recessed from the bottom surface 113. The
depression 1141 is formed with a winding inner surface 1142 and a
resisting rear surface 1143 to resist a rear end of the metal shell 3.
The contacts 2 are located in the recessed portion 1131 to prevent the
insulative housing 1 from being destroyed in a soldering process of the
contacts 2. The base 11 further has a pair of transitional surfaces 115
at two lateral sides of the rear surface 111 thereof

[0035] Referring to FIGS. 4-8, and conjoined with FIGS. 19-20, the
electrical connector 100 in the first embodiment has six said contacts 2
which are arranged in a row along the transverse direction. The contacts
2 are insert molded in the insulative housing 1, and comprise two pairs
of outer contacts 25 and a pair of middle contacts 26 between two pairs
of outer contacts 25. The middle contacts 26 can simultaneously connect
with the middle signal contact 811 of the Micro USB 2.0 plug connector
800 or respectively connect with two middle grounding contacts 912 of the
Mini DiiVA plug connector 900.

[0036] Each contact 2 has a retaining portion 22 insert molded in the base
11, a contact portion 21 forwardly extending to the tongue 12 from one
end of the retaining portion 22, and a soldering portion 23 backwardly
extending out of the insulative housing 1 from another end of the
retaining portion 22. The contact portions 21 are arranged in a row at
the lower surface 122 of the tongue 12 to make the tongue 12 have a small
thickness. The soldering portions 23 are arranged in a row at a same
horizontal surface to make the electrical connector 100 be surface
mounted to the circuit board. All contact portions 21 have same width,
and all soldering portions 23 have same width, then the contacts 2 can be
conveniently produced. The arrangement of the soldering portions 23 is
compliance to that of the Mini DiiVA receptacle connector (not shown),
then an electronic device assembled with the electrical connector 100 of
the present invention can be set with a current Mini DiiVA chip (not
shown), which can effectively use current resource. The width of each
contact portion 21 is larger than that of each contact 81, 91 of the
Micro USB 2.0 and Mini DiiVA plug connectors 800, 900 for assuring that
the contact portions 21 can electrically connect with the contacts 81, 91
of the Micro USB 2.0 or Mini DiiVA plug connector 800, 900. The width of
each soldering portion 23 is narrower than that of each contact portion
21 for enlarging the distance between adjacent soldering portions 23.

[0037] Referring to FIG. 8, the contact portions 21 of two middle contacts
26 define a distance D1 therebetween along the transverse direction. The
contact portions 21 of each pair of outer contacts 25 define another
distance D2 therebetween along the transverse direction. The distance D2
is larger than the distance D1. The adjacent outer contact 25 and the
middle contact 21 define a distance D3 which is larger than the distance
D1 and smaller than the distance D2. The adjacent soldering portions 23
define a distance D4 therebetween along the transverse direction. The
distance D4 is larger than the distances D1, D2 and D3. The distances D1,
D2 and D3 are smaller than corresponding distance between adjacent
contacts 81, 91 of Micro USB 2.0 or Mini DiiVA plug connectors 800, 900,
which can make the electrical connector 100 of the first embodiment can
mate with two different groups of contacts 81, 91 corresponding to the
Micro USB 2.0 and Mini DiiVA plug connectors 800, 900 respectively.

[0038] Therefore, when the Micro USB 2.0 plug connector 800 is inserted
into the electrical connector 100, the contact portions 21 of two pairs
of outer contacts 25 can respectively connect with the power contact, one
signal contact, the ID contact and the grounding contact of the Micro USB
2.0 plug connector 800 for transmitting power signal, data signal, ID
signal and grounding signal. Besides, because the distance D1 between the
contact portions 21 of the middle contacts 26 is smaller, thereby the
contact portions 21 of the middle contacts 26 can simultaneously connect
with the middle signal contact 811 of the Micro USB 2.0 plug connector
800. Then the middle contacts 26 can simultaneously connect with current
Micro USB 2.0 chip (not shown) to transmit USB data signal, or only one
middle contact 26 connect with the Micro USB 2.0 chip to transmit USB
data signal.

[0039] When the electrical connector 100 mates with the Mini DiiVA plug
connector 900, the contact portions 21 of two pairs of outer contacts 25
respectively connect with two pairs of differential signal contacts 911
of the Mini DiiVA plug connector 900 to transmit high frequency signal
for being adapted for the development of electronic industry. The contact
portions 21 of the middle contacts 26 connect with two grounding contacts
912 of the Mini DiiVA plug connector 900 to transmit grounding signals.

[0040] As fully described above, the electrical connector 100 is designed
after long time studying, analyzing and testing to adapt all difference
between the Micro USB 2.0 plug connector 800 and Mini DiiVA plug
connector 900, then the electrical connector 100 not only can mate with
the current Micro USB 2.0 plug connector 800 to adapt current electronic
device, but also can mate with the Mini DiiVA plug connector 900 to
achieve high speed signal transmission.

[0041] Referring to FIGS. 3-5, the metal shell 3 surrounds the tongue 12
to form a mating opening 30 between the metal shell 3 and the tongue 12
for receiving the mating connectors 800, 900. The metal shell 3 has a top
wall 31 facing to the upper surface 121 of the tongue 12, a bottom wall
32 facing to the lower surface 122 of the tongue 12, and two side walls
33 connecting the top wall 31 and the bottom wall 32 together. The top
wall 31 has a spring arm 311 extending backwardly, a pair of locking
holes 312 at two sides of the spring arm 311, and two cutouts 313
forwardly recessed from a rear edge of the top wall 31. The spring arm
311 extends into the mating opening 30 to resist the mating connectors
800, 900. The locking holes 312 are used to lock with locking contacts
82, 92 of the mating connectors 800, 900. The cutouts 313 engage with the
projections 1121 of the insulative housing 1 to prevent the metal shell 3
from moving backwardly.

[0042] The side wall 33 bends along the winding inner surface 1142 of the
insulative housing 1 at a lower side thereof Each side wall 33 has a
first side wall 331 perpendicularly connecting with the top wall 31, a
second side wall 332 perpendicularly connecting with the bottom wall 332,
and a third side wall 333 obliquely connecting the first side wall 331
and the second side wall 332. The top wall 31 is wider than the bottom
wall 32 along the transverse direction, which makes the first side wall
331 is located at an outside of the second side wall 332. The first side
wall 331 is parallel to the second side wall 332. Each side wall 33
further has a locking strip 34 inwardly extending from a rear end of the
first side wall 331, and a mounting leg 35 downwardly extending from a
lower end of the second side wall 332. The locking strip 34 engages with
the transitional surface 115 and locks with the rear surface 111 of the
base 11 for preventing the metal shell 3 from moving forwardly.

[0043] The bottom wall 32 has an upward protruding portion at a middle
position thereof and two downward recessed portions at two sides of the
protruding portion. Each recessed portion is formed with a first bottom
wall 321 extending inwardly from a lower end of the second side wall 332
and an upwardly oblique second bottom wall 322 connecting with the
protruding portion. The protruding portion presents as a platform to form
a flat third bottom wall 323 which is parallel to the first bottom wall
321 and the top wall 31. The first bottom walls 321 are located in a same
plane and have the same width along the transverse direction. The third
bottom wall 323 defines a width which is larger than that of the first
bottom wall 321. The top wall 31 and the upper surface 121 of the tongue
12 defines a distance which is smaller than that between the third bottom
wall 323 and the lower surface 122 of the tongue 12 along an up to down
direction perpendicular to the transverse direction. The third bottom
wall 323 and two second bottom walls 322 are located below the tongue 12
and overlap with the tongue 12 along the up to down direction.

[0044] The mating opening 30 comprises a first mating opening 301 which is
formed between the third bottom wall 323, the top wall 31, two first side
walls 331, two third side walls 333 and the tongue 12, and a second
mating opening 302 which is formed between two second side walls 332, the
top wall 31, the whole bottom wall 32 and the tongue 12. The first mating
opening 301 has a contour corresponding to that of the Micro USB 2.0 plug
connector 800, and is used to mate with Micro USB 2.0 plug connector 800.
The second mating opening 302 has a contour corresponding to the Mini
DiiVA plug connector 900, and is used to mate with the Mini DiiVA plug
connector 900.

[0045] When the Micro USB 2.0 plug connector 800 is inserted into the
mating opening 30, the outsides of the Micro USB 20 plug connector 800
contact the inner walls of the first mating opening 301, and do not
contact the second side walls 332, the first bottom walls 321 and the
second bottom walls 322. When the Mini DiiVA plug connector 900 is
inserted into the mating opening 30, the outsides of the Mini DiiVA plug
connector 900 contact the inner walls of the second mating opening 302,
and do not contact the first side walls 331, the third side walls 333.
Therefore, the mating opening 30 between the top wall 31, the third
bottom wall 323, the extension wall of the third side wall 333 between
the second side wall 332 and the third bottom wall 323, the extension
wall of the second side wall 332 between the top wall 31 and a lower end
of the third side wall 333 is shared by the first and second mating
openings 301, 302, and the shared mating opening 30 occupies two-thirds
of the whole mating opening 30 for adapting the miniature development of
the electronic industry.

[0046] Referring to FIGS. 9-13, the electrical connector 100' according to
a second embodiment of the present invention is disclosed. The electrical
connector 100' also comprises an insulative housing 1', a plurality of
contacts 2' insert molded in the insulative housing 1' and a metal shell
3' covering the insulative housing V. The insulative housing 1' and the
metal shell 3' are approximately same to that in the first embodiment.
The contacts 2' comprise two pairs of outer contacts 25' same to that in
the first embodiment. The difference between the electrical connectors
100, 100' in the first and second embodiment is that the contacts 2' has
only one middle contact 26' to electrically connect with one middle
contact of the Micro USB 2.0 plug connector 800 or two middle contacts of
the Mini DiiVA plug connector 900.

[0047] The contact portion 21' of the middle contact 26' is wider than
that of all outer contacts 25. The middle contact 26' has a pair of
soldering portions 23' extending from two sides of the retaining portion
22'. The adjacent soldering portions 23' define a distance D41 which is
equal to the distance D4 in the first embodiment. The contact portions
21' are wider than the soldering portions 23' along the transverse
direction. The contact portions 21' of the middle contact 26' and an
adjacent outer contact 25' defines a distance D31 therebetween. The
contact portions 21' of the two adjacent outer contacts 25' define a
distance D21 which is larger than the distance D31. The distance D41 is
larger than the distances D21, D31.

[0048] When the Micro USB 2.0 plug connector 800 is inserted into the
electrical connector 100', the contact portion 21' of the middle contact
26' electrically connect with the middle signal contact 811 of the Micro
USB 2.0 plug connector 800, and the Micro USB 2.0 chip can alternatively
connect with only one soldering portion 23' of the middle contact 26' or
both soldering portions 23' of the middle contact 26'. When the Mini
DiiVA plug connector 900 is inserted into the electrical connector 100',
the contact portion 21' of the middle contact 26' connects with both
middle grounding contacts 912 to transmit grounding signal.

[0049] Referring to FIGS. 14-18, an electrical connector 100'' according
to a third embodiment of the present invention is disclosed. The
electrical connector 100'' also comprises an insulative housing 1'', a
plurality of contacts 2'' insert molded in the insulative housing 1'',
and a metal shell 3'' covering the insulative housing 1''. The insulative
housing 1'' and the metal shell 3'' are approximately same to that in the
second embodiment. The difference between the electrical connectors 100',
100'' in the second and third embodiments is that: the middle contact
26'' in the third embodiment only has one soldering portion 23''
backwardly extending out of the insulative housing 1'' from a rear middle
position of the retaining portion 22''. The soldering portions 23'' of
all contacts 2'' have same width. Besides, the adjacent soldering
portions 23'' have equal distance D42 therebetween. Thereby the
arrangement of the soldering portions 23'' corresponds to that of the
Micro USB 2.0 receptacle connector to electrically connect with current
Micro USB 2.0 chip. In addition, the contact portions 21'' of the
adjacent middle contact 26'' and the outer contact 25'' defines a
distance D32 which is smaller than a distance D22 defined between the
contact portions 21'' of each pair of outer contacts 25''. The distance
D42 is larger than the distances D22, D32.

[0050] When the Micro USB 2.0 plug connector 800 is inserted into the
electrical connector 100'', the contact portion 21'' of the middle
contact 26'' electrically connect with the middle signal contact 811 of
the Micro USB 2.0 plug connector 800, and the Micro USB 2.0 chip connect
with the soldering portion 23'' of the middle contact 26'' directly. When
the Mini DiiVA plug connector 900 is inserted into the electrical
connector 100'', the contact portion 21'' of the middle contact 26''
connects with both middle grounding contacts 912 to transmit grounding
signals. Two grounding lines of the Mini DiiVA chip simultaneously
connect with the soldering portion 23'' of the middle contact 26''.

[0051] As fully described above, the metal shell 3, 3', 3'' of the
electrical connector 100, 100', 100'' is formed with two different mating
openings 301, 302 for adapting two different mating connectors 800, 900,
and two mating openings share two-thirds space of the mating opening 30,
which can make the electrical connector 100, 100', 100' not only has a
high speed transmission, but also has a small volume to adapt the
development of the electronic industry.

[0052] As fully described above, the electrical connector 100, 100', 100''
in the embodiments of the present invention are receptacle connector. Of
course, the electrical connector 100, 100', 100'' can alternatively be
designed as plug connector, and the mating connectors would be receptacle
connectors.

[0053] It is to be understood, however, that even though numerous,
characteristics and advantages of the present invention have been set
fourth in the foregoing description, together with details of the
structure and function of the invention, the disclosed is illustrative
only, and changes may be made in detail, especially in matters of number,
shape, size, and arrangement of parts within the principles of the
invention to the full extent indicated by the broad general meaning of
the terms in which the appended claims are expressed.